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/*
* ide_ctrl_cfg.h
*
* LibChip library IDE controller header file - structures used for
* configuration and plugin interface definition.
*
* Copyright (C) 2002 OKTET Ltd., St.-Petersburg, Russia
* Author: Eugeny S. Mints <Eugeny.Mints@oktet.ru>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef __IDE_CTRL_CFG_H__
#define __IDE_CTRL_CFG_H__
#include <rtems/blkdev.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Avaible drivers for IDE controllers
*/
typedef enum {
IDE_STD,
IDE_CUSTOM /* BSP specific driver */
} ide_ctrl_devs_t;
/* ATA modes: bit masks used in ctrl_config_io_speed call */
#define ATA_MODES_PIO3 0x001
#define ATA_MODES_PIO4 0x002
#define ATA_MODES_PIO 0x003
#define ATA_MODES_DMA0 0x004
#define ATA_MODES_DMA1 0x008
#define ATA_MODES_DMA2 0x010
#define ATA_MODES_UDMA0 0x020
#define ATA_MODES_UDMA1 0x040
#define ATA_MODES_UDMA2 0x080
#define ATA_MODES_UDMA3 0x100
#define ATA_MODES_UDMA4 0x200
#define ATA_MODES_UDMA5 0x400
#define ATA_MODES_UDMA 0x7e0
#define ATA_MODES_DMA 0x7fc
/*
* Each driver for a particular controller have to provide following
* functions in such a structure. The only field which should not be NULL
* is contInit.
*/
typedef struct ide_ctrl_fns_s {
bool (*ctrl_probe)(int minor); /* probe routine */
void (*ctrl_initialize)(int minor);
int (*ctrl_control)(int minor, uint32_t command,
void *arg);
/*
* Functions which allow read/write registers of a particular controller.
* (these functions may be used from ide_controller_read_register,
* ide_controller_write_register)
*/
void (*ctrl_reg_read)(int minor, int regist, uint16_t *value);
void (*ctrl_reg_write)(int minor, int regist, uint16_t value);
/*
* The function allows to escape overhead for read/write register
* functions calls
*/
void (*ctrl_read_block)(int minor, uint32_t block_size,
rtems_blkdev_sg_buffer *bufs, uint32_t *cbuf,
uint32_t *pos);
void (*ctrl_write_block)(int minor, uint32_t block_size,
rtems_blkdev_sg_buffer *bufs, uint32_t *cbuf,
uint32_t *pos);
rtems_status_code (*ctrl_config_io_speed)(int minor,
uint16_t modes_available);
} ide_ctrl_fns_t;
/*
* IDE Controller configuration. Table of such configurations is provided
* by BSP
*/
typedef struct ide_controller_bsp_table_s {
char *name; /* device name */
ide_ctrl_devs_t type; /* chip type */
ide_ctrl_fns_t *fns; /* pointer to the set of driver routines */
bool (*probe)(int minor); /* general probe routine */
uint8_t status; /* initialized/non initialized. Should be set
* to zero by static initialization
*/
uint32_t port1; /* port number for the port of the device */
bool int_driven; /* interrupt/poll driven */
rtems_vector_number int_vec; /* the interrupt vector of the device */
void *params; /* contains either device specific data or a
* pointer to s device specific information
* table
*/
} ide_controller_bsp_table_t;
/* IDE controllers Table */
extern ide_controller_bsp_table_t IDE_Controller_Table[];
/* Number of rows in IDE_Controller_Table */
extern unsigned long IDE_Controller_Count;
#define IDE_CTRL_MAX_MINOR_NUMBER 4
#define IDE_CTRL_NON_INITIALIZED 0
#define IDE_CTRL_INITIALIZED 1
#ifdef __cplusplus
}
#endif
#endif /* __IDE_CTRL_CFG_H__ */
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